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  <title>Document</title>
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  <script>
    // 1. 利用箭头函数来求和
      const sum=(...num)=> {
        console.log(num);
        let he=0
        for(let i=0;i<num.length;i++){
          he=he+num[i]
        }
        return he
      }
  const res= sum(1,8,46,5,48,94,126,3)
  console.log(res);
  </script>
</body>

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